Valgo is a type-safe, expressive, and extensible validator library for Golang. Supports localization and is built with generics.

Valgopt provides a set of validators for the Valgo validation library that work seamlessly with optional value types from the Opt library.

Constago is a Go code generator that scans your codebase for struct types and generates constants, accessor structs, and getter functions derived from struct field tags and names. It helps you replace hard‑coded strings and ad‑hoc reflection with type‑safe, discoverable APIs.